How to Fix Error Code CAA50024 in Microsoft 365 Apps?

The error code CAA50024 points to problems signing into Microsoft apps, which can slow down your work. These issues can be due to incorrect configuration of MDM (Mobile Device Management), a service in Microsoft Apps, in the Azure AD Admin Center.

Other reasons contributing to this issue include corrupted cache files, wrong system date and time settings, or issues with the account settings.

In this article, we will look into different ways to solve this problem.

1. Verify Office 365’s Service Status

If Microsoft is currently doing server maintenance or there are reports of outages, this could be causing sign-in interruptions. By checking their official site for any updates, you can figure out if the problem is on your end or a widespread issue with the service itself, saving you time on unnecessary troubleshooting steps.

So, before trying other solutions, confirm if there is ongoing server maintenance that might be stopping you from using any Microsoft 365 application. You can check for server maintenance on Microsoft’s official site.

2. Verify Date and Time Settings

When your device’s internal clock doesn’t match the server’s timestamp, it can cause security checks to fail. By ensuring your device’s date and time settings are correct, you allow for smooth verification of credentials, which may get rid of the sign-in errors you’re encountering.

  1. Press Windows + I to open Settings.
  2. Navigate to Time & Language > Date & Time.
  3. Turn on Set time automatically and Set time zone automatically.
  4. Verify if the error has been fixed.

3. Clear Teams Cache

When you clear the cache, you remove temporary files that can become unstable or corrupt over time, which could be causing login issues. By clearing these files, you ensure that Teams loads without any old data, potentially fixing any error that was blocking the sign-in process.

  1. Press Windows + R, type %AppData%\Microsoft\teams\cache and press Enter.
  2. Select all contents in the folder and press the SHIFT + DEL keys to permanently delete the files.
  3. Confirm by clicking Yes.

4. Reconnect Your Account

Reconnecting your device to Azure AD re-establishes the trust relationship between your device and Microsoft services. This fresh start can clear up any conflicts or errors that might have happened due to previous connection interruptions or settings errors. By disconnecting and then reconnecting, you’re basically asking the system to update the credentials and settings, giving you a new start for successful sign-ins.

  1. Press Windows + I to open Settings.
  2. Go to Accounts > Access Work or School.
  3. Click on the Disconnect button to cut off the current connection, then select Connect to create it again.

5. Clear Browser Cache and Use InPrivate Mode

If you’re using a browser to access Teams, clearing the browser cache and cookies can provide a fresh starting point for logging in. If clearing the cache doesn’t help, use InPrivate Mode to ensure that no cookies, cached data, or browser extensions get in the way of the login process.

To open an InPrivate window in your browser, press CTRL + SHIFT + N and try using Teams there.

6. Run Office Quick Repair

The quick repair feature checks the installation files and fixes any conflicts or corruptions it finds. As a result, it brings back the functionality of Microsoft apps, often clearing the path for a smooth sign-in process. You can access Quick Repair from the Add or Remove Programs section in the system settings, ensuring your Office applications are running optimally and free of internal errors that might block your access.

  1. Press the Windows key, type Add or Remove Program, and open it.
  2. Find the Office App, click the three dots, and select Advanced Options.
  3. Scroll down to Reset and choose Repair.

Check out Microsoft’s forum for more details on Office repair.

7. Update Microsoft Apps

By keeping Microsoft apps up-to-date, you make sure that you have all the latest features, performance improvements, and critical security patches installed. This not only improves your app’s functionality but can also solve any bugs or issues that could be causing sign-in problems.

  1. Type Store in the Search box and open it.
  2. Click on the Library icon at the bottom left.
  3. Choose Get Updates then Update all.
  4. The most recent versions will be automatically downloaded and installed.

8. Remove Cached Office Credentials

When cached credentials are outdated or corrupt, they may stop your ability to smoothly log into Office apps. By erasing them, you’re basically asking your system to get fresh, error-free authentication details, which can eliminate sign-in issues that were caused by the older, flawed data.

  1. Press the Windows key + R to open the Run dialog box.
  2. Type ‘control.exe /name Microsoft.CredentialManager’ and press Ctrl + Shift + Enter to open Credential Manager with administrative privileges.
  3. Select Windows Credentials.
  4. Find any Generic Credentials related to Microsoft Office.
  5. Click on them and select Remove from the popup menu.
  6. Confirm by clicking the Yes button.
  7. Restart your PC and try to sign into Office 365 again.

9. Contact Admin

If the above solutions don’t work, you should get in touch with your system administrators to re-evaluate the MDM settings and enable registration using the Azure AD Administrator account.

System administrators have the necessary technical skills and elevated privileges to manage Azure AD. By updating MDM settings and allowing user registration from the Azure AD Administrator account, they could be able to fix the sign-in error.

For extra details on Azure, refer to the Microsoft Community discussion.

10. Contact Microsoft Support

Microsoft’s team is equipped with advanced knowledge and tools that aren’t readily available to users. They can carry out in-depth diagnostics, identify complex issues, and suggest personalized solutions that can solve the error you’re encountering. Their direct involvement often ensures a thorough resolution that independently applied fixes might not offer.

So, we recommend you contact Microsoft Support. Explain your issue to them for help in troubleshooting.


Muhammad Zubyan

Muhammad Zubyan is a certified Google IT Support Professional with over 7 years of extensive experience. He has worked on more than 1500 computers, gaining valuable insights that enable him to detect and troubleshoot any complicated root cause of Windows-related issues and errors. In addition to managing Appuals as a Senior Editor, he is currently developing his own Game Optimization program that caters to both gamers and casual users alike.